Charges have been laid against a semi-truck driver who is accused of hitting and killing a man on Highway 43 north of Grande Prairie. Brock Potts, a 56-year-old Alexis Nakota Sioux Nation man, had been reported as sitting on the Highway near Range Road 55 at about 3:15 a.m. on Apr. 7. RCMP said he was hit by a vehicle and killed before officers arrived. The driver left the scene and a criminal investigation was launched. On Thursday, Mounties said a 47-year-old Morinville man was charged with failing to remain at the scene of a collision causing death. He was released with conditions and scheduled to appear at the Alberta Court of Justice in Grande Prairie on Wednesday.